Preparation and Electric Properties of Flame Retardant ABS with Brominated Flame Retardants

The effect of decabromodiphenyl oxide (DBDPO), tetrabrombisphenol A dis(2,3 - dibromopyl) ether (TBAB) and their blend on the flame retardancy and electric properties of flame retardant ABS was studied. The total content of DBDPO, TBAB and their blend in the flame retardant ABS was fixed at 15wt% . It was found that DBDPO and TBAB have synergistic effect for the flame retardancy of ABS. When the weight ratio of DBDPO and TBAB is 2:1, the OI value of flame retardant ABS as high as 32.4 is obtained. DBDPO and TBAB damage the electric properties of flame retardant ABS, which reduce the electric insulting properties and electric strength, and increase the dielectric constant and the dielectric dissipation factor.